Chelsea, IA Weather & Growing Conditions
Today
81°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny. High near 81, with temperatures falling to around 78 in the afternoon. Southwest wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Chance Showers And Thunderstorms | 8 mph SW | 54% |
| Tonight | 61°F | Chance Showers And Thunderstorms | 8 mph N | 46% |
| Sunday | 67°F | Chance Rain Showers | 8 to 12 mph NE | 48% |
| Sunday Night | 55°F | Chance Rain Showers | 12 mph NE | 46% |
| Monday | 63°F | Chance Rain Showers | 12 mph NE | 46% |
| Monday Night | 49°F | Chance Rain Showers | 6 to 10 mph NE | 43% |
| Tuesday | 61°F | Chance Rain Showers then Partly Sunny | 8 mph ENE | 28% |
| Tuesday Night | 45°F | Mostly Clear | 2 to 7 mph NE | 4% |
| Wednesday | 66°F | Sunny | 6 mph NE | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 3 mph ENE | 2% |
| Thursday | 66°F | Partly Sunny | 5 mph E | 8% |
| Thursday Night | 53°F | Partly Cloudy | 2 mph E | 7% |
| Friday | 69°F | Partly Sunny | 5 mph E | 6% |
| Friday Night | 53°F | Partly Cloudy | 3 mph ESE | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Chelsea, IA
Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
165 days
Hardiness zone
5a
Explore more for Chelsea, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Belle Plaine, Ia (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.